Home / 643,515.20-964,981.20-244,023.20

Finding the Fourth Proportional to 643,515.20, 964,981.20 and 244,023.20

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Solution

The fourth proportional to 643,515.20, 964,981.20 and 244,023.20 is: 365,924.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,515.20 : 964,981.20 = 244,023.20 : x
  2. Step 2: Convert to fraction form
    643,515.20/964,981.20 = 244,023.20/x
  3. Step 3: Cross multiply
    643,515.20x = 964,981.20 × 244,023.20
  4. Step 4: Simplify right side
    643,515.20x = 235,477,800,363.84
  5. Step 5: Solve for x
    x = 235,477,800,363.84/643,515.20
  6. Step 6: Final answer
    x = 365,924.22

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.